From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [81.3.11.18] (helo=mail.ku-gbr.de) by canuck.infradead.org with esmtps (Exim 4.43 #1 (Red Hat Linux)) id 1Cw088-0006pi-Kt for linux-mtd@lists.infradead.org; Tue, 01 Feb 2005 10:39:54 -0500 Date: Tue, 1 Feb 2005 16:39:46 +0100 From: Konstantin Kletschke To: linux-mtd@lists.infradead.org Message-ID: <20050201153945.GA26068@synertronixx3> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Subject: I need still help with XIP, kernel boots now :) List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi people! Now I need definately have XIP to get running :/ I use 2.6.11-rc2-mm2 and put the "xipu" patches into it, which make the "make xipuImage" available and the XIP Kernel boots now. heureka. Due to the fakt I have no hardware partiotionable Flash devices I need to utlize the mtd software support to cexist with an XIP Kernel (CONFIG_MTD_XIP=y). I changed the xip.h to #if defined(CONFIG_ARCH_SA1100) || defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_IMX) #include #ifdef CONFIG_ARCH_PXA #include #endif #ifdef CONFIG_ARCH_IMX #include #endif /* CONFIG_ARCH_IMX */ #endif /* CONFIG_ARCH_ */ #if defined(CONFIG_ARCH_PXA) #define xip_irqpending() (ICIP & ICMR) /* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */ #define xip_currtime() (OSCR) #define xip_elapsed_since(x) (signed)((OSCR - (x)) / 4) #elif defined (CONFIG_ARCH_IMX) #define xip_irqpending() (( IMX_INTENABLEH & IMX_NIPNDH ) || ( IMX_INTENABLEL & IMX_NIPNDL )) /* we hopefully too :p */ #define xip_currtime() (IMX_TCN(1)) #define xip_elapsed_since(x) (signed)((IMX_TCN(1) - (x)) / 4) #elif So, when I read datasheet correct, pxa's ICIP corresponds to i.MX's NIPNDx and pxa's ICMR to i.MX's INTENABLEx. When I boot the xipuImage with / mounted ro it boots most often to the loginprompt, I can login and do stuff. But when / is mounted rw the system brakes. this happens after Probing scb9328_flash at physical address 0x10000000 (16-bit buswidth) scb9328_flash: Found 1 x16 devices at 0x0 in 16-bit bank Intel/Sharp Extended Query Table at 0x0031 cfi_cmdset_0001: write suspend disabled Using buffer write method cfi_cmdset_0001: Erase suspend on write enabled 5 cmdlinepart partitions found on MTD device scb9328_flash Creating 5 MTD partitions on "scb9328_flash": 0x00000000-0x00020000 : "U-boot" 0x00020000-0x00040000 : "U-boot_env" 0x00040000-0x00140000 : "kernel" 0x00140000-0x00540000 : "root" 0x00540000-0x00940000 : "fs" NET: Registered protocol family 2 IP: routing cache hash table of 512 buckets, 4Kbytes TCP established hash table entries: 1024 (order: 1, 8192 bytes) TCP bind hash table entries: 1024 (order: 0, 4096 bytes) TCP: Hash tables configured (established 1024 bind 1024) Its also possible to mount / ro and mount rw a fourth partition after logging in, kernel freezes then. So I have an error in my setup. Is xip.h the only place, which should be adapted from pxa/sa1100 to i.MX? When compiling the cmopiler warns: CC drivers/mtd/chips/cfi_probe.o /tmp/ccnLmXio.s: Assembler messages: /tmp/ccnLmXio.s:3: Warning: ignoring changed section attributes for .data CC drivers/mtd/chips/cfi_util.o /tmp/ccjtGCIO.s: Assembler messages: /tmp/ccjtGCIO.s:13: Warning: ignoring changed section attributes for .data CC drivers/mtd/chips/cfi_cmdset_0001.o Is this fatal and needs to be adjusted in platform stuff or arch stuff? Regards, Konsti -- GPG KeyID EF62FCEF Fingerprint: 13C9 B16B 9844 EC15 CC2E A080 1E69 3FDA EF62 FCEF